Effect of copper oxide on the polymorphism of unstabilized and yttria-stabilized zirconia

We have studied the effect of copper oxide doping on the phase composition of unstabilized and yttria partially and fully stabilized zirconia prepared via hydroxide precipitation followed by heat treatment at different temperatures. Copper oxide is shown to stabilize cubic zirconia only in the prese...

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Bibliographic Details
Published in:Inorganic materials 2007-06, Vol.43 (6), p.627-632
Main Authors: Kravchik, K. V., Pashkova, O. V., Belous, A. G., V’yunov, O. I., Gavrilenko, O. N.
Format: Article
Language:English
Subjects:
Chemical reactions
Copper
Copper oxides
Phase composition
Polymorphism
Precipitation heat treatment
Temperature
Yttria-stabilized zirconia
Yttrium oxide
Zirconium dioxide
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Summary:We have studied the effect of copper oxide doping on the phase composition of unstabilized and yttria partially and fully stabilized zirconia prepared via hydroxide precipitation followed by heat treatment at different temperatures. Copper oxide is shown to stabilize cubic zirconia only in the presence of yttria. The chemical processes in the CuO-Y2O3-ZrO2 system and the mechanisms of C-ZrO2 stabilization are discussed.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168507060131